Function FindFileNameFromAddress

platforms/hip/hal/src/kernel_param.cpp:28–64

Copy from rocclr/hipamd/src/hip_fatbin.cpp

// Copy from rocclr/hipamd/src/hip_fatbin.cpp
static bool FindFileNameFromAddress(const void *image, std::string *fname_ptr, size_t *foffset_ptr)
{
    // Get the list of mapped file list
    bool ret_value = false;
    std::ifstream proc_maps;
    proc_maps.open("/proc/self/maps", std::ifstream::in);
    if (!proc_maps.is_open() || !proc_maps.good()) return ret_value;

    // For every line on the list map find out low, high address
    std::string line;
    while (std::getline(proc_maps, line)) {
        char dash;
        std::stringstream tokens(line);
        uintptr_t low_address, high_address;
        tokens >> std::hex >> low_address >> std::dec >> dash >> std::hex >> high_address >> std::dec;
        if (dash != '-') continue;

        // If address is > low_address and < high_address, then this
        // is the mapped file. Get the URI path and offset.
        uintptr_t address = reinterpret_cast<uintptr_t>(image);
        if ((address >= low_address) && (address < high_address)) {
            std::string permissions, device, uri_file_path;
            size_t offset;
            uint64_t inode;
            tokens >> permissions >> std::hex >> offset >> std::dec >> device >> inode >> uri_file_path;

            if (inode == 0 || uri_file_path.empty()) return ret_value;

            *fname_ptr = uri_file_path;
            *foffset_ptr = offset + address - low_address;
            ret_value = true;
            break;
        }
    }

    return ret_value;
}

// Copy from rocclr/hipamd/src/hip_fatbin.cpp
static bool GetFileHandle(const char *fname, int *fd_ptr, size_t *sz_ptr)